I just had an e-mail from Rick Cowey, whose eagle eye had spotted a typo in the birthdate of one of the Cottams — Mary, daughter of Richard Cottam and Margaret Bagot. I had her birth date as 1858, when it was actually 1830, and once the right birth date was there, a lot of other things fell into place, like her marriage to John Worrall, and her children. Rick also kindly sent me images of her appearing on the 1841 and 1881 censuses, the first in Manchester, and the second in Middlesex, where the family moved to in the mid-1860s.